Which of the Following Statements About Pie Charts Is True

Which of the following statements about pie charts is true?

A) In a pie chart,the largest slice should begin at 6 o'clock and go counterclockwise.
B) Exploding slices should be used extensively in pie charts.
C) Pie slices should complete a whole,that is,add up to 100% of a data series.
D) The slices of the pie charts should be free from data labels.
E) 3-D pie charts are best for representing complicated numerical data.